<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>导航条练习2</title>
  <style type="text/css">
    .box1{
      width: 900px;
      height: 32px;
      background-color: #bfa;
      margin: 50px auto;
      background-image: url(img/75.png);
      background-repeat: repeat-x;
      
    }
  </style>
</head>
<body>
  <div class="box1"></div>
</body>
</html>